I'm trying to book a paid J ticket SFO-MNL on AA and would like to stay on AA or AA codeshares for as long as possible to maximize EQMs (JL and CX only earn 1.5x EQMs whereas AA is 2x EQMs for discount J).

Seems like there are no AA codeshares to MNL. And even trying to find any flights to MNL is pretty challenging. When selecting "all airlines" on aa.com, I get a bunch of flights on PR and only a handful on JL or CX.

Ideally I'd like to go SFO-DFW-HKG-MNL and the same on the way back. But I can't figure out how to do it on aa.com, let alone through my work travel agent. Does anybody have any suggestions? Thanks!!!!